d56e5a98c8
* harbour/include/hbapi.h
* harbour/include/hbstack.h
* harbour/source/vm/hvm.c
* harbour/source/vm/estack.c
* harbour/source/vm/memvars.c
! fixed __M[V]CLEAR()/ __M[V]RESTORE() to be exactly Clipper compatible
and do not release PUBLIC GetList value. Here it's small example
which illustrates current behavior and exploits bug in previous
version:
memvar getlist
proc main()
getlist:="public:getlist"
? getlist
private getlist:="private:getlist"
? getlist
CLEAR MEMORY
? getlist
return
* harbour/source/compiler/gencc.c
+ added Harbour exception to the license - it's mine code with
few lines added/modified by Ryszard and Viktor. I hope they do
not have anything against.
* harbour/source/compiler/hbmain.c
* harbour/source/compiler/hbident.c
* minor formatting
111 lines
3.0 KiB
C
111 lines
3.0 KiB
C
/*
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* $Id$
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*/
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/*
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* Harbour Project source code:
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* The cache for identifiers
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*
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* Copyright 1999 Ryszard Glab <rglab@imid.med.pl>
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* www - http://www.harbour-project.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA (or visit the web site http://www.gnu.org/).
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*
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*/
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#include <string.h>
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#include "hbhash.h"
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#include "hbcomp.h"
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#define HB_IDENT_TABLE_SIZE 509UL
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/* create a new identifier or return the existing one
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*/
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const char * hb_compIdentifierNew( HB_COMP_DECL, const char * szName, int iType )
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{
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const char * szIdent;
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szIdent = ( char * ) hb_hashTableFind( HB_COMP_PARAM->pIdentifiers,
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( void * ) szName );
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if( !szIdent )
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{
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/*
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* In the future we may add direct support for static identifiers
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* so it will not be necessary to allocate separate buffer for them
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*/
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if( iType == HB_IDENT_COPY || iType == HB_IDENT_STATIC )
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szIdent = hb_strdup( szName );
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else
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szIdent = szName;
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hb_hashTableAdd( HB_COMP_PARAM->pIdentifiers,
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( void * ) szIdent, ( void * ) szIdent );
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}
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else if( iType == HB_IDENT_FREE )
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hb_xfree( ( void * ) szName );
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return szIdent;
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}
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/* returns a hash key */
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static HB_HASH_FUNC( hb_comp_IdentKey ) /* ULONG func (void *Value, void *Cargo) */
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{
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ULONG ulSum = 0;
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const char *szName = ( char * )Value;
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while( *szName )
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ulSum += *szName++;
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HB_SYMBOL_UNUSED( HashPtr );
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HB_SYMBOL_UNUSED( Cargo );
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return ulSum % HB_IDENT_TABLE_SIZE;
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}
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/* deletes an identifier */
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static HB_HASH_FUNC( hb_comp_IdentDel )
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{
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hb_xfree( Value );
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HB_SYMBOL_UNUSED( HashPtr );
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HB_SYMBOL_UNUSED( Cargo );
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return 1;
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}
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/* compares two identifiers */
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static HB_HASH_FUNC( hb_comp_IdentComp )
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{
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HB_SYMBOL_UNUSED( HashPtr );
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return strcmp( (char *)Value, (char *)Cargo );
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}
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/* initialize the hash table for identifiers */
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void hb_compIdentifierOpen( HB_COMP_DECL )
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{
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HB_COMP_PARAM->pIdentifiers = hb_hashTableCreate( HB_IDENT_TABLE_SIZE,
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hb_comp_IdentKey, hb_comp_IdentDel, hb_comp_IdentComp );
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}
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/* release identifiers table */
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void hb_compIdentifierClose( HB_COMP_DECL )
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{
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if( HB_COMP_PARAM->pIdentifiers )
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{
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hb_hashTableKill( HB_COMP_PARAM->pIdentifiers );
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HB_COMP_PARAM->pIdentifiers = NULL;
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}
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}
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